Depletion-Mode MOSFETs utilize vertical DMOS process.

Press Release Summary:

Offered in SOT-89/-223/-23 packages, CPC39xx N-channel depletion-mode MOSFETs are available with voltage ratings that range from 60–800 V. These normally on (NO) FETs, with max Gate-to-Source threshold voltages from -2.9 to -3.9 V, can conduct current without any gate voltage. Applications include voltage pre-regulator circuits, cold start voltage feed, current sources, constant current loads, LED drive circuits, NO switches, ignition modules, converters, and power supplies.


Original Press Release:

IXYS Expands Depletion-Mode MOSFET Family

The CPC39xx devices drive numerous power and LED circuits and are available in several SOT packages.

Beverly, Massachusetts, USA — IXYS Integrated Circuits Division (ICD), Inc., an IXYS Company, (NASDAQ: IXYS), announced the expansion of its depletion-mode MOSFET family, with voltage ratings from 60V to 800V, and low maximum Gate-to-Source threshold voltages from -2.9V to -3.9V, which means that with ‘zero’ gate voltage the devices are on.

IXYS ICD N-channel depletion-mode MOSFETs utilize a proprietary third generation vertical DMOS process that realizes world-class, high voltage performance in an economical silicon gate process. The vertical DMOS process yields a robust device with high input impedance for efficient power management  applications, that is normally on. These highly reliable MOSFET devices have been widely  used  in IXYS ICD’s extensive  solid state relays, that have been successfully  deployed in demanding industrial, LED lighting, aerospace, consumer,  automotive and telecommunications applications.

These MOSFET devices are offered in SOT-89, SOT-223, and SOT-23 packages.
 
Being ‘normally on’ FETs enables these devices to conduct current without any gate voltage which make them effective in power start up circuitry, in emergency lighting and backup power control applications, where gate power is lost. Furthermore, the unique characteristics of the devices enable them to be ideal current sources with the proper corresponding gate voltage bias, and even expand their function as dynamic current limiting devices.

Typical applications include but are not limited to: Voltage pre-regulator circuits, Cold start voltage feed, current sources, constant current loads,  LED drive circuits, IGBT speed enhancement, normally-on switches, ignition modules, converters and power supplies. Our application note AN-500 provides additional applications and design advice.

Pricing and Availability
The CPC39xx Depletion-Mode FETs are available in production quantities. OEM pricing ranges from $0.19 to $0.24 in quantities of 25KU.

About IXYS ICD and IXYS Corporation
IXYS Integrated Circuits Division, (ICD), a leader in the design and manufacture of solid state relays and high voltage integrated circuits, is a wholly owned subsidiary of IXYS Corporation. IXYS Corporation develops and markets primarily high performance power semiconductor devices that are used in controlling and converting electrical power efficiently in power systems for the telecommunication and internet infrastructure, motor drives, medical systems and transportation. IXYS also serves its markets with a combination of digital and analog integrated circuits, power systems, and RF GaAs and GaN based products. Additional information about IXYS Integrated Circuits Division, Zilog and IXYS may be found at www.ixysic.com, www.zilog.com and www.ixys.com.

http://www.ixysic.com/Products/FET.htm

Regards,
Catherine Austin
Product Marketing Manager
IXYS Integrated Circuits Division (formerly Clare)

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